Table 1 Partitions of variation in βNTI accounted for by soil variables and vegetation communities.

From: Historical land use has long-term effects on microbial community assembly processes in forest soils

Taxon

Partition

Adj. R2

P value

Significant variables

Bacteria

Soil

0.17

0.004

Total N, Extractable N, Extractable C:N

 

Vegetation

0.32

0.001

Q. rubra, P. strobus, B. lenta, L. tuilipifera

 

Soil + Vegetation

0.45

0.001

 
 

Soil | Vegetation

0.05

0.003

Total N, Extractable C:N

 

Vegetation | Soil

0.14

0.001

Q. rubra, P. strobus, B. lenta

 

Soil ∩ Vegetation

0.19

−

 
 

Residuals

0.55

−

 

Fungi

Soil

0.24

0.001

Total N, Microbial Biomass C

 

Vegetation

0.33

0.001

R. maximum, P. strobus, L. tulipifera, Carya spp.

 

Soil + Vegetation

0.38

0.001

 
 

Soil | Vegatation

0.05

0.005

Total N

 

Vegetation | Soil

0.14

0.001

R. maximum, P. strobus, L. tulipifera

 

Soil ∩ Vegetation

0.19

−

 
 

Residuals

0.62

−

 
  1. The significance of each partition was tested using distance-based redundancy analysis (dbRDA). Note that the significance of Soil ∩ Vegetation cannot be tested. The significance of individual variables within each variation partition was determined using permutation tests (anova.cca function, vegan package) following dbRDA. For vegetation species, genus abbreviations are as follows: Q Quercus, P Pinus, B Betula, L Liriodendron, R Rhododendron.
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